A geothermal heating simulation test platform suitable for various occasions

Abstract

The present application relates to a kind of geothermal heating simulation test platform for a variety of occasions, including geothermal test simulation platform, water storage system and water supply system;Water storage system includes stainless steel water storage iron box, water injection monitoring port, water tank inlet and outlet water flange;Water injection monitoring port is connected with geothermal test simulation platform, and the fluid in geothermal test simulation platform is injected by water injection monitoring port;Water supply system includes water pump fan, water pump high-power motor, water pump inlet and outlet water flange;Geothermal test simulation platform includes import and export pipeline flange, external steel structure box and flange internal baffle piece.The present application is suitable for a variety of occasions geothermal heating simulation test platform.By adjusting the number, size and material of pipeline, the heat transfer of single and multiple geothermal pipes of different depths and different strata is simulated;Through simulation test, the exploitation mode of geothermal energy can be optimized, the design and control strategy of heat pump system can be improved, the heat transfer and transmission efficiency of heating system can be optimized, etc., which helps to improve the performance and economy of geothermal heating.

Description

Technical Field

[0001] This invention belongs to the field of geothermal heating simulation test technology, specifically relating to a geothermal heating simulation test platform adaptable to various occasions. Background Technology

[0002] Currently, geothermal energy, as a renewable energy source, has the potential to replace traditional fossil fuels in the heating sector, thereby reducing carbon emissions and environmental impact. my country has a wide distribution of geothermal energy resources, but their development is still in its initial stages.

[0003] Currently, many challenges encountered in geothermal development, such as different fluids, complex geological formations, multi-pipe effects, and the burial conditions, materials, and shapes of geothermal pipes, all affect heat exchange efficiency. Therefore, there is an urgent need to develop a geothermal heating simulation test platform adaptable to various scenarios to effectively address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a geothermal testing platform that can be adapted to various occasions, so as to solve the problem that it is difficult to judge the impact of different fluids, complex terrain, multi-pipe effect, geothermal pipe burial conditions, materials and shapes on heat exchange efficiency during geothermal development.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A geothermal heating simulation test platform adaptable to various occasions includes a geothermal test simulation platform 30 and a water storage system 1 and a water supply system 9 used in conjunction with it;

[0007] The water storage system 1 includes a stainless steel water storage tank, a water injection monitoring port 2, and water tank inlet flanges 3 and water tank outlet flanges 4 located on the front and rear sides of the stainless steel water storage tank; the water injection monitoring port 2 is connected to the geothermal test simulation platform 30, and the fluid inside the geothermal test simulation platform 30 is injected through the water injection monitoring port 2; a heating and temperature control device 5 for selecting the required test temperature is placed in the lower opening of the water tank outlet flange 4.

[0008] The water supply system 9 includes a water pump fan 8, a high-power water pump motor 10 located below and connected to the water pump fan 8, a water pump inlet flange 12, and a water pump outlet flange 13; the high-power water pump motor 10 enables water in the geothermal test simulation platform 30 to flow from the water storage system 1 through the water pump inlet flange 12 and the water pump outlet flange 13 to the geothermal test simulation platform 30, forming an internal circulation;

[0009] The geothermal test simulation platform 30 comprises an inlet and outlet pipeline flange 7, an external steel structure box 15 and a flange internal blocking piece 18; the external steel structure box 15 is provided with a plurality of pipeline flanges 7 on the front and rear sidewalls, and a stainless steel flange internal blocking piece 18 is arranged inside; the pipeline flanges 7 on the front and rear sidewalls of the external steel structure box 15 are connected through a platform internal pipeline 21, forming a passage;

[0010] The water supply system 9 can provide power to pump the water out of the water pump outlet flange 13 and the platform inlet flange 11, and the connecting pipeline 28 of the geothermal test simulation platform 30 and the water supply system 9 is arranged between the platform outlet flange 16 and the water tank inlet flange 3, and the connecting pipeline 27 of the geothermal test simulation platform 30 and the water storage system 1 is arranged between the water tank outlet flange 4 and the water pump inlet flange 12, and the connecting pipeline 29 of the water storage system 1 and the water supply system 9 is arranged between the water tank outlet flange 4 and the water pump inlet flange 12, forming a circulating loop.

[0011] Further, the stainless steel water storage iron tank is provided with a preset flange interface, the water tank inlet flange 3 and the water tank outlet flange 4 can be nested in the flange interface, clamped by a stainless steel clamp, and then sealed with sealant.

[0012] Further, the water injection monitoring port 2 is arranged on the top of the stainless steel water storage iron tank and connected with the geothermal test simulation platform 30 by using a gold wire hose to ensure communication, and the gold wire hose can be bent without changing the internal diameter.

[0013] Further, a heating temperature control device 5 is arranged at a position 50 cm below the water tank outlet flange 4, and a flange is arranged on the top of the heating temperature control device 5, and the heating temperature control device 5 is arranged on the flange and sealed by using adhesive tape, and a display is arranged on the outside of the heating temperature control device 5, and a temperature adjustment switch is arranged on the display.

[0014] Further, the water pump fan 8 is connected with the water pump high-power motor 10 through a cable and a bearing, and the water pump fan 8 is used for ventilation and ventilation in case of overheating during the operation of the water pump; the water pump high-power motor 10 is used for providing power for the liquid flow of the whole system.

[0015] Further, the water supply system 9 is connected with the geothermal test simulation platform 30 through a gold wire hose, a multi-channel pipeline is designed between the water supply system 9 and the geothermal test simulation platform 30, and there is only one water supply pipe and multiple water outlet pipes; the water pump inlet and outlet of the water pump corresponding to the water pump inlet flange 12 and the water pump outlet flange 13 are provided with corresponding spire head interfaces, the interfaces are connected, clamped by a stainless steel pipeline clamp and sealed by sealant.

[0016] Further, the flange 7 of the inlet and outlet pipe is provided with 8 screw holes, and the stainless steel flange inner plug 18 is also provided with 8 corresponding screw holes, and the inlet and outlet pipe flange 7 and the stainless steel flange inner plug 18 are connected and fixed by corresponding screws.

[0017] Further, the platform internal pipe 21 is connected with the inlet and outlet pipe flange 7 through the internal joint flange 6 of the geothermal test simulation platform 30, and the platform internal pipe 21 is provided with a stainless steel pipe clamp 19 and a stainless steel pipe support 20 on both sides.

[0018] Further, the bottom of the geothermal test simulation platform 30 is a stainless steel plate 26, and both sides are provided with an acrylic observation window 23, and the bottom stainless steel plate 26 is directly placed on the bottom of the model box by welding, and the acrylic observation window 23 is embedded on the model box by screws and rubber gaskets.

[0019] Further, the geothermal test simulation platform 30 is stabilized by driving expansion screws between the platform bottom profile steel support 24, the bottom gasket 25 and the ground.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] The present application is suitable for a variety of occasions in the field of geothermal test platform, by injecting different fluids in the test platform, effectively solve the simulation of different fluid heat transfer efficiency; by selecting different strata soil in the geothermal test simulation platform, the influence of complex strata on heat transfer capacity can be simulated; by selecting heat exchange pipes with different heights, materials and shapes in the geothermal test simulation platform, the influence of geothermal pipe embedding conditions, material and shape on heat transfer efficiency can be solved; multiple heat exchange pipes can be used in the geothermal test simulation platform to study the heat transfer efficiency problem caused by multiple pipe cluster effect; by adjusting the number, size and material of the pipe, the single and multiple geothermal pipe heat transfer simulation of different depths and different strata can be realized; through simulation test, the exploitation mode of geothermal energy can be optimized, the design and control strategy of heat pump system can be improved, and the heat transfer and transmission efficiency of heating system can be optimized, which helps to improve the performance and economy of geothermal heating. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0023] Figure 1Structure schematic diagram of geothermal heating simulation test platform suitable for various occasions of the present application;

[0024] Figure 2 Front view of geothermal test simulation platform;

[0025] Figure 3 Side view of geothermal test simulation platform;

[0026] Figure 4 Top view of geothermal test simulation platform;

[0027] Figure 5 Schematic diagram of water storage system;

[0028] Figure 6 Schematic diagram of water supply system.

[0029] In the figure, 1. Water storage system 2. Water injection monitoring port 3. Water tank inlet flange 4. Water tank outlet flange 5. Heating temperature control device 6. Platform internal joint flange 7. Pipeline flange 8. Water pump fan 9. Water supply system 10. Water pump high-power motor 11. Platform water inlet flange 12. Water pump water inlet flange 13. Water pump water outlet flange 14. Box gasket 15. External steel structure box 16. Platform water outlet flange 17. Platform flange interface side plate 18. Stainless steel flange internal plug 19. Stainless steel pipe clamp 20. Stainless steel pipeline support 21. Platform internal pipeline 22. Platform both sides of steel structure support 23. Acrylic observation window 24. Platform bottom steel support 25. Bottom gasket 26. Stainless steel plate 27. Simulation platform and water storage system connecting pipeline 28. Simulation platform and water supply system connecting pipeline 29. Water storage system and water supply system connecting pipeline 30. Geothermal test simulation platform. DETAILED DESCRIPTION

[0030] The present application will be further described below in conjunction with the embodiments:

[0031] The present application will be further described below in conjunction with the embodiments:

[0032] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0033] The application is suitable for geothermal heating simulation test platform in various occasions, which comprises geothermal test simulation platform 30 and water storage system 1 and water supply system 9 used in conjunction therewith.

[0034] The water storage system 1 comprises a stainless steel water storage iron box, a water injection monitoring port 2 and water tank inlet flange 3 and water tank outlet flange 4 located at the front and rear sides of the stainless steel water storage iron box. The stainless steel water storage iron box is provided with a flange interface, the water tank inlet flange 3 and the water tank outlet flange 4 are nested in the flange interface, clamped by a stainless steel clamp and fixed by sealing glue outside.

[0035] The water injection monitoring port 2 is arranged at the top of the stainless steel water storage iron box and connected with the geothermal test simulation platform 30 by a gold wire hose to ensure communication. The gold wire hose can be bent and the inner diameter is unchanged. The fluid in the geothermal test simulation platform 30 is injected by the water injection monitoring port 2 and sealed after injection. Different fluids can be replaced to realize heat transfer simulation of different fluids in the geothermal pipe.

[0036] The water tank outlet flange 4 is opened at the lower part and used for placing a heating temperature control device 5 for selecting the required temperature of the test. The heating temperature control device 5 is similar to a large resistance wire. A port for installing the heating temperature control device 5 is opened at 50 cm below the water tank outlet flange 4, a flange is installed on the port, the heating temperature control device 5 is installed on the flange and sealed by adhesive tape. The heating temperature control device 5 is provided with a display outside, the display is provided with a temperature adjusting switch to realize accurate control of a large range of temperature.

[0037] The water supply system 9 comprises a water pump fan 8, a water pump high-power motor 10 located below the water pump fan 8, a water pump inlet flange 12 and a water pump outlet flange 13. The water pump fan 8 and the water pump high-power motor 10 are connected by a cable and a bearing. The water pump fan 8 is mainly used for ventilation during the overheating of the water pump during operation. The water pump high-power motor 10 is used to provide power for the liquid flow of the whole system. The water pump high-power motor 10 makes the water in the geothermal test simulation platform 30 flow from the water storage system 1 to the geothermal test simulation platform 30 through the water pump inlet flange 12 and the water pump outlet flange 13 to form an internal circulation.

[0038] The water supply system 9 and the geothermal test simulation platform 30 are connected by a gold wire hose. A multi-channel pipeline is designed between the water supply system 9 and the geothermal test simulation platform 30. There is only one water supply pipe and multiple water outlet pipes, for example, a stainless steel tee pipe. The water pump inlet and outlet of the corresponding water pump of the water pump inlet flange 12 and the water pump outlet flange 13 are provided with corresponding spool head interfaces. After connection, the stainless steel pipe clamp is clamped and sealed by sealing glue.

[0039] The geothermal test simulation platform 30 comprises inlet and outlet pipe flanges 7, an external steel structure box 15, internal flange plugs 18, internal platform pipes 21, platform side steel structure supports 22, two sides of acrylic observation windows 23 and platform bottom steel supports 24.

[0040] Specifically, the external steel structure box 15 is provided with 19 pipe flanges 7 on the front and rear sidewalls, and the pipe flanges 7 can be replaced according to test requirements. The inlet and outlet pipe flanges 7 of the geothermal test simulation platform 30 are provided with temperature sensors for testing the temperature of the fluid flowing through the inlet and outlet pipe flanges 7. In this embodiment, there is not only one inlet and outlet pipe flange 7 on the platform, and different flanges can be selected according to different test requirements.

[0041] In order to prevent the mixture of water and sand from flowing back, stainless steel internal flange plugs 18 are installed inside the inlet and outlet pipe flanges 7 of the geothermal test simulation platform 30. The stainless steel internal flange plugs 18 are required to be used for the pipe flanges 7 that are not used during the test process. The inlet and outlet pipe flanges 7 are provided with 8 screw holes, and the stainless steel internal flange plugs 18 are also provided with 8 corresponding screw holes. The inlet and outlet pipe flanges 7 are connected and fixed with the stainless steel internal flange plugs 18 by using corresponding screws.

[0042] The pipe flanges 7 on the front and rear sidewalls of the external steel structure box 15 are connected by the internal platform pipes 21 to form a passage. The temperature loss can be monitored during the test process. The water pump pipeline can be connected to multiple pipe flanges 7 at a time, and single and multiple geothermal pipe heat transfer simulation of different depths and different strata can be realized. The external steel structure box 15 is provided with corresponding interfaces during design, and only needs to be put into the interface for use and fixed by sealant. The platform flange interface side plate 17 is connected with the external steel structure box 15 by welding.

[0043] The internal platform pipes 21 are connected with the inlet and outlet pipe flanges 7 through the internal joint flanges 6 of the geothermal test simulation platform 30. There is a corresponding steel pipe between the internal joint flanges 6 and the inlet and outlet pipe flanges 7, and the steel pipe is connected through the steel pipe. The corresponding holes are designed in the model box, and the steel pipe is directly clamped into the holes for fixation. In order to fix the internal platform pipes 21, stainless steel pipe clamps 19 and stainless steel pipe supports 20 are designed on both sides. Therefore, the internal platform pipes 21 are detachable, and different material geothermal pipe heat transfer simulation can be realized. The stainless steel pipe clamps 19 are installed on the long side sidewall of the model box close to the short side on both sides, and are used for fixing the internal steel pipe of the geothermal test simulation platform 30. The stainless steel pipe supports 20 are fixed on both sides of the long side sidewall, and are equivalent to a clamping bracket that can support the stainless steel pipe.

[0044] The bottom of the geothermal test simulation platform 30 is a stainless steel plate 26, and both sides are provided with acrylic observation windows 23, which are convenient for observing the phenomena and sensor readings in the test process. The geothermal test simulation platform 30 is stable by expanding the screws between the platform bottom profile steel support 24, the bottom gasket 25 and the ground. The bottom stainless steel plate 26 is placed directly on the bottom of the model box by welding, and the acrylic observation window 23 is embedded on the model box by screws and rubber gaskets.

[0045] The inside of the geothermal test simulation platform 30 is filled with the required soil properties according to the test requirements, the platform internal pipeline 21 used in the geothermal test simulation platform 30 is buried, and the required sensitive temperature sensor is buried in the soil layer to monitor the temperature change of different places in real time.

[0046] In this embodiment, the circulating system mainly relies on the water supply system 9 to provide power. The simulation platform and water supply system connecting pipeline 28 is arranged between the water pump outlet flange 13 and the platform inlet flange 11, the simulation platform and water storage system connecting pipeline 27 is arranged between the platform outlet flange 16 and the water tank inlet flange 3, and the water storage system and water supply system connecting pipeline 29 is arranged between the water tank outlet flange 4 and the water pump inlet flange 12, to form a circulating loop.

[0047] Working process:

[0048] The fluid is injected by the water injection monitoring port 2, heated by the heating temperature control device 5, enters the water supply system 9 through the water tank outlet flange 4 to the water pump inlet flange 12; then, enters the geothermal test simulation platform 30 through the water pump outlet flange 13 to the platform inlet flange 11, the sensitive temperature sensor is installed in the soil layer inside the geothermal test simulation platform 30, the heat transfer condition of the fluid passing through the soil layer is monitored, and the fluid reflows into the stainless steel water storage tank through the platform outlet flange 16 to the water tank inlet flange 4, so that the total amount of fluid in the whole process is unchanged. The required fluid for the test is injected through the water injection monitoring port 2 on the water storage system 1 until the total amount of fluid in the system meets the experimental conditions, stop, open the heating temperature control device 5, select the required test temperature. Start the water pump fan 8, water pump high-power motor 10 and corresponding temperature monitoring display equipment of the water supply system 9.

[0049] The application provides a geothermal field test platform suitable for various occasions, effectively solves the simulation of heat exchange efficiency of different fluids by injecting different fluids in the test platform, can simulate the influence of complex strata on heat exchange capacity by selecting different strata soil to fill the geothermal test simulation platform, solves the problems of the influence of the embedding condition, material and shape of the geothermal pipe on the heat exchange efficiency by selecting heat exchange pipes with different heights, materials and shapes in the geothermal test simulation platform, and can study the heat exchange efficiency problem caused by the cluster effect of multiple pipes. The geothermal heating simulation test research promotes technical innovation and system improvement. Through the simulation test, the exploitation mode of geothermal energy can be optimized, the design and control strategy of the heat pump system can be improved, and the heat transfer and transmission efficiency of the heating system can be optimized. These technical innovations and system improvements help to improve the performance and economy of geothermal heating.

[0050] It should be noted that the above are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A geothermal heating simulation test platform suitable for various occasions, characterized in that: The application relates to a geothermal test simulation platform (30) and a water storage system (1) and a water supply system (9) matched with the geothermal test simulation platform (30). The water storage system (1) comprises a stainless steel water storage iron box, a water injection monitoring port (2) and water tank inlet flanges (3) and water tank outlet flanges (4) arranged on the front and rear sides of the stainless steel water storage iron box; the water injection monitoring port (2) is connected with the geothermal test simulation platform (30), and the fluid in the geothermal test simulation platform (30) is injected through the water injection monitoring port (2); and a heating temperature control device (5) for selecting a required temperature of a test is arranged in the lower opening of the water tank outlet flange (4). The water supply system (9) comprises a water pump fan (8), a water pump high-power motor (10) arranged below the water pump fan (8) and connected with the water pump fan (8), a water pump inlet flange (12) and a water pump outlet flange (13); the water pump high-power motor (10) can make the water in the geothermal test simulation platform (30) flow to the geothermal test simulation platform (30) from the water storage system (1) through the water pump inlet flange (12) and the water pump outlet flange (13) to form an internal circulation. The geothermal test simulation platform (30) comprises inlet and outlet pipeline flanges (7), an external steel structure box (15) and flange internal blocking pieces (18); a plurality of pipeline flanges (7) are arranged on the front and rear side walls of the external steel structure box (15), the internal blocking pieces (18) are arranged in the pipeline flanges (7), and temperature sensors are arranged on the pipeline flanges (7); the pipeline flanges (7) on the front and rear side walls of the external steel structure box (15) are connected through platform internal pipelines (21) to form a passage. The water supply system (9) can provide power, and the connecting pipelines (28) of the geothermal test simulation platform (30) and the water supply system (9) are arranged between the water pump outlet flange (13) and the platform inlet flange (11), the connecting pipelines (27) of the geothermal test simulation platform (30) and the water storage system (1) are arranged between the platform outlet flange (16) and the water tank inlet flange (3), and the connecting pipelines (29) of the water storage system (1) and the water supply system (9) are arranged between the water tank outlet flange (4) and the water pump inlet flange (12) to form a circulation loop.

2. The geothermal heating simulation test platform for multiple occasions of claim 1, wherein: The stainless steel water storage iron box is provided with preset flange interfaces, the water tank inlet flange (3) and the water tank outlet flange (4) are nested in the flange interfaces, the stainless steel clamps are used to tightly clamp the water tank inlet flange (3) and the water tank outlet flange (4), and sealing glue is applied on the outside for fixation.

3. The geothermal heating simulation test platform for various occasions of claim 1, wherein: The water injection monitoring port (2) is arranged on the top of the stainless steel water storage iron box and connected with the geothermal test simulation platform (30) through a gold wire hose to ensure communication, the gold wire hose can be bent and the internal diameter is unchanged.

4. The geothermal heating simulation test platform for various occasions of claim 1, wherein: A heating temperature control device (5) is arranged at a position 50 cm below the water tank outlet flange (4), a flange is arranged on the upper portion of the heating temperature control device (5), the heating temperature control device (5) is arranged on the flange and sealed by using adhesive tape, and a display is arranged on the outside of the heating temperature control device (5), and a temperature adjusting switch is arranged on the display.

5. The geothermal heating simulation test platform for various occasions of claim 1, wherein: The water pump fan (8) and water pump high-power motor (10) are connected by cable and bearing, the water pump fan (8) is used to prevent overheating during the operation of the water pump, ventilation and ventilation; the water pump high-power motor (10) is used to provide power for the whole system liquid flow.

6. The geothermal heating simulation test platform for various occasions of claim 1, wherein: The water supply system (9) and the geothermal test simulation platform (30) are connected by gold wire hose, a multi-channel pipeline is designed between the water supply system (9) and the geothermal test simulation platform (30), the water supply pipe has only one, and the water outlet pipe has multiple; the water pump inlet flange (12) and the water pump outlet flange (13) have corresponding water pump inlet and outlet interfaces, which are connected by stainless steel pipe clamp, and then sealed with sealing glue.

7. The geothermal heating simulation test platform for various occasions of claim 1, wherein: The inlet and outlet pipe flange (7) is provided with 8 screw holes, and the stainless steel flange internal baffle (18) is also provided with 8 corresponding screw holes, and the inlet and outlet pipe flange (7) and the stainless steel flange internal baffle (18) are connected and fixed by corresponding screws.

8. The geothermal heating simulation test platform for various occasions of claim 1, wherein: The platform internal pipeline (21) is connected with the inlet and outlet pipeline flange (7) through the internal joint flange (6) of the geothermal test simulation platform (30), and the platform internal joint flange (6) and the inlet and outlet pipeline flange (7) are connected by steel pipe, and the platform internal pipeline (21) is provided with stainless steel pipe clamp (19) and stainless steel pipeline support (20) on both sides.

9. The geothermal heating simulation test platform for various occasions of claim 1, wherein: The bottom of the geothermal test simulation platform (30) is a stainless steel plate (26), and the both sides are provided with acrylic observation windows (23), the bottom stainless steel plate (26) is placed on the bottom of the model box by welding, and the acrylic observation window (23) is embedded on the model box by screw and rubber gasket.

10. The geothermal heating simulation test platform for various occasions of claim 1, wherein: The geothermal test simulation platform (30) is stable by expanding the screw between the platform bottom profile steel support (24), bottom gasket (25) and the ground.

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